Watch control knob



FIG. 1 is a top left perspective view of a watch control knob showing my new design;

FIG. 2 bottom right perspective view thereof;

FIG. 3 is front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM The ornamental design for a watch control knob, as shown. 